DATA PROCESS METHOD FOR REPLACEMENT AND GARBAGE COLLECTION DATA IN NON-VOLATILE MEMORY CACHE HAVING RING STRUCTURE

摘要

PURPOSE: A data processing method for collecting garbage or replacing data recorded in the non-volatile memory cache of a ring structure is provided to implement low power consumption and high processing speed by using all pages of a writing cache area. CONSTITUTION: A reading access process for new data corresponding to K blocks is requested to an empty block of a reading cache area. The K blocks are selected from the block of the reading cache area. When all pages of the writing cache area are used, the effective data recorded in the writing cache area is recorded in a disk array.